Just tell how your username came to being and why you like it.
I watched Avatar The Last Airbender, and liked it, so that's how "Avatar" part of my name came in.
The Ino part is a little different. I was watching Naruto, and she poped up out of nowhere. I thought, "Who is this chick?" I found out her name was Ino, and I started to like her. She was under showed, she had a rivaly with the main girl character, and she could swich into other bodies. I loved her, and that's how "Ino" came to be in my name.
Note: If you wish to talk about your real name, please post in this thread.